I'm not sure if you are responding to a specific comment, or just the general hero items that reward pure runs, but here's my two-cents.
a) Some people like part of foreplay/sexual activities not connected specifically to sex. For example, if you wanted to play Karryn as a dominate woman, you might choose the sadism perk, and enjoy it when she masturbates/orgasms rather than when she is specifically fucked by the prisoners.
b) Some people like domination loss, which is when the tables are turned on the dominate person, and part of that comes from the standard pacing if stories. ie, the buildup of suspension and the release
when the tables are turned. This game allows for that natural pacing, and allows the players to set that pace(ie, the difficulty)
c) Some people really like very difficult games because they like the satisfaction of completing it, and in general, I have found the pure run(especially pure virgin) to be another way to increase the difficulty of the game.
Of course, there's so much good content that I have multiple saves for different unlocks and game difficulties, but those are some responses to the existence of pure runs.
Don't worry, no one is acting all high and mighty and kink shaming you so indirectly. They are just enjoying the game the way they want to enjoy it.(and this game in particular is surprisingly flexible when it comes to the number of ways it can be enjoyed.)